What is Transiting Exoplanet Survey Satellite (TESS)?

About Transiting Exoplanet Survey Satellite: 

• It is a NASA mission that's searching for planets orbiting the brightest stars in Earth's sky. 
• It is designed to discover thousands of exoplanets orbit around the brightest dwarf stars in the sky.
• It is finding planets ranging from small, rocky worlds to giant planets, showcasing the diversity of planets in our galaxy. It has so far found 410 confirmed exoplanets or “new worlds” circling stars other than the Sun.
• The satellite is a follow-up to NASA's highly successful Kepler space telescope, which found thousands of exoplanets during a decade of work after its launch in 2009.
• It was launched on April 18, 2018, aboard a SpaceX Falcon 9 rocket out of Cape Canaveral.
• It circles Earth in a unique high Earth orbit of 12 to 15 days, which is inclined in such a way that the telescope’s sky view is largely free from obstructionsby our bright planet and the Moon.
• The prime mission ended on July 4, 2020, and TESS is now on an extended mission.
• TESS is finding planets ranging from small, rocky worlds to giant planets, showcasing the diversity of planets in the galaxy. 

Q1: What is Kepler Space Telescope?

It was NASA’s first planet-hunting mission, assigned to search a portion of the Milky Way galaxy for Earth-sized planets orbiting stars outside our solar system. It was launched on March 6, 2009.The spacecraft was named after the famed German astronomer Johannes Kepler (1571-1630).

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